Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-01-26
Nucl.Phys.Proc.Suppl.157:152-156,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 3 figures. New references and comments added. Invited talk at the 7th International Symposium on Radiative Correction
Scientific paper
10.1016/j.nuclphysbps.2006.03.02
Production of (electrically neutral) heavy-quark pairs, such as t{\bar c} and {\bar t}c, is extremely suppressed in the SM. In supersymmetric (SUSY) theories, such as the MSSM, the number of these events can be significantly enhanced thanks (mainly) to the FCNC couplings of gluinos. We compute the efficiency of this mechanism for FCNC production of heavy quarks at the LHC. We find that \sigma (pp\to t\bar{c}+\bar{t}c) can reach 1 pb, and therefore one can expect up to 10^{5} events per 100 fb^{-1} of integrated luminosity (with no counterpart in the SM). Their detection would be instant evidence of new physics, and could be a strong indication of underlying SUSY dynamics.
Guasch Jaume
Hollik Wolfgang
Penaranda Siannah
Sola Joan
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